Branchq,
All you do is make my point for me. The webpage from Debrett's you gave merely lists first the actual title and then the names, second, to show what names the Prince(ss) in question has. If you click on Beatrice or Eugenie, for example, you will see their Christian names similiary listed; HRH Beatrice Anne Louise (or whatever it is).
The webpage does not add "of York" because all it is doing is giving the names. We know that Bea's title is not HRH Princess Beatrice but HRH Princess Beatrice
of York, reflecting her father's royal ducal dignity.
Go back to the 'Royal Connections' page which links to the individual page you brough up for the Duke of York. What does it do? Lists the line of succession with the Prince(ss)- es names in brackets underneath. HRH The Duke of York, it says, and then underneath in brackets (Prince Andrew).
We need to get it clearly understood that there is
NO title HRH The Prince Andrew, Duke of York. His title is
HRH The Duke of York. The sole website you have provided supports me, not you, on this matter; it gives the address to write to the Prince as HRH the Duke of York; lists his title as such in the line of succession, etc. In terms of writing, it clearly states a royal Duke is written to as HRH the Duke of ---X. The reason it lists the son of the sovereign and gives HRH The Prince Edward as an example is because that page was written
before Edward was made Earl of Wessex; there is instruction on how to write to a royal duke but nothing about a royal earl or countess; royal earls and countesses are mentioned nowhere on the page, so at the time, Edward was still simply The Prince Edward. (Duke has a footnote 'for Dukes of the blood royal see Prince' - nothing similiar under Earl).
Anyway, I have in this thread given you links to Buckingham Palace's own website and to the Court Circular, issued by Buckingham Palace. Both list the Duke of York solely as HRH The Duke of York. Unsurprising, because that is his title.
If you are not prepared to accept the view of Buckingham Palace's own website and court-issued documents as to what his title is, then I submit that you are never going to be convinced by anything and certainly not by anything I post.
I don't know why we can't agree to let Buckingham Palace have the last word.
The Royal Family But I accept the combined assurances of BP, the Court Circular
Court circular - Comment - Times Online and Debrett's
Debrett's - The Royal Family and the Order of Succession
that the title is HRH The Duke of York.
If you keep insisting that there's such a title as HRH The Prince Andrew, Duke of York I'll just keep disagreeing with you, but I think I'll let the folks make up their own minds at this point as we are going in circles.